Home / 857,754.26-1,286,000.83-408,790.42

Finding the Fourth Proportional to 857,754.26, 1,286,000.83 and 408,790.42

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Solution

The fourth proportional to 857,754.26, 1,286,000.83 and 408,790.42 is: 612,885.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,754.26 : 1,286,000.83 = 408,790.42 : x
  2. Step 2: Convert to fraction form
    857,754.26/1,286,000.83 = 408,790.42/x
  3. Step 3: Cross multiply
    857,754.26x = 1,286,000.83 × 408,790.42
  4. Step 4: Simplify right side
    857,754.26x = 525,704,819,179.19
  5. Step 5: Solve for x
    x = 525,704,819,179.19/857,754.26
  6. Step 6: Final answer
    x = 612,885.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.